Feeding attachment for printing-presses and the like.



R. E. JONES. FEEDING ATTACHMENT FOR PRINTING PRESS ES AND THE LIKE.

APPLICATION FIL ED MAR. 14. l9l3- Patented June 22, 1915.

' 6 SHFETS-SHEET I- R. E. JONES.

FEEDING ATTACHMENT FOR PRINTING PRESSES AND THE LIKE.

APPLICATION HLED MAR. M, 1913- II I Patented June 22, 1915.

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D S RWY S MNQNNO R. E. JONES.

FEEDING ATTACHMENT FOR PRINTING PRESSES AND THE LIKE.

' APPLICATION FILED MAR. 14, 1913.

Patented June 22, 1915.

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.TTT TK R. E-JONES.

v FEEDING ATTACHMENT FOR PRINTING PRESSES AND THE LIKE.

APPLICATION mm MATT. 14, I913.

LTM WQQ- Pitented June 22, 1915.

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M N (fit 73 Z5 62 A65 R. E. JONES.

FEEDING ATTACHMENT FOR PRINTING PRESSES AND THE LIKE.

APPLICATION FILED MAR. 14, l9l3- Patented June 22, 1915.

6 SHEETSSHEET 5 R. E. JONES.

FEEDING ATTACHMENT FOR PRINTING PRESSES AND THE LIKE. V APPLICATION FILED MAR-l4, I913- s l IT m Patented June 22, 1915.

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Specification of Letters JPatent. Patented June 22, i915.

Application filed March 14, 1913. i Seria11t'o.754,29 3.

Attachments for Printing-Presses and the like, of which the following 15 a fulland clear specification. p

This invention relates more especla'lly to feeding attachments for that type of presses generally termed pony presses.

The primary object of this invention 1s to provide an improved combination and arrangement of parts, by means of which thesheets may be fed to the press by mechanism that is completely automatic or whereby said sheets can be fed in a semi-' automatic manner by being presented by hand to an auxiliary feeding device, which delivers the sheets in' a manner similar to that of the fully automatic feeding ma chine.

fine of the objects of the present inven tion is to provide an improved construction,

making the press cylinder and form just as accessible with thefeeder attached as without it. Toward the attainment of this object,'and according to the preferred embodiment of my invention the usual conveyer frame is omitted fromthe automatic feeding machine and the press feed board utilized in its place, said press feed board being for this purpose adapted to have the necessary mechanism customarily carried on the conveyer frames mounted thereon, and having an extra leaf which is hinged to the rear end of the press feed board to lengthen said board so that a stack of sheets can be mounted thereon when thesemi-a'utomatic feeding mechanism is in use. In order to make the cylinder and form as well as parts of the attached automatic feeding machine available, the press feed board of the printing' press is preferably constructed in a plurality of hinged sections, one of said sections having mounted thereon a sheet operated registering mechanism and an automatic throwout device and another of said sections being adapted to have the semi automatic feeding device or drop roller mechanism, mounted thereon for use when the automatic feeding machine is not in use. More especially in connection with the pony type ofp'ress, the feed board is so low that it is necessary for the operator to raise'the rear en'dlof the feed board more frequently in getting at the form. Likewise with the front leaf of said feed board, said forward and rear leaves being adapted to be raised without-removing any part ofthe press or feeder. 1

Another object of the invention is to provide an improved press tripping mechanism for temporarily interrupting the operation of the press whenever a failure occurs in the sheet registering and feeding mechanism, said tripping mechanism being adapt ed to be reset and the operation of the press continued when the next sheet is properly presented to .the impression cylinder. By removing the automatic registering devices, the press may be fed by hand the same as if there was no feeder attached.

Other and further objects will appear in the specification and be specifically pointed out'in the appended claims, reference being had to the accompanying drawings exemplifyingmy invention in its adaptation to the VVhitlock press of the pony type.

In the drawings, Figure l is a side elevation of a Whitlock press provided with my improved attachments, but with the semiautomatic feeding device or drop roller mechanismremoved and adapted to' have an an automatic feeding machineconnected up parts shown in section; Fig. 6 is a similar view showing the parts in different posi tions; Fig. 7 is a top plan view of the same, parts being broken away; Fig. 8 is an enlarged side elevation of portions of the printing press shown in Fig. 1; Fig. 9 is an end elevation of the same taken from the right of Fig. 8,- parts being broken and parts shown in section.

Referring more particularly to the drawings and to the embodiment shown therein, a fragmentary portion of an automatic sheet separating and feeding machine is shown at the right of Fig. 1, the cam shaft 1 of the automatic feeding mechanism being disposed near the forward edge of a press feed board which in the-present embodiment is constructed in sections 2, 3, 4 and-5, which are hinged together by hinges 6, 7,

and 8. r aid press feed board is arranged,

asshown in Fig. 1, to have sheets pass thereover to an impression cylinder 9, which is journaled at 10 in vertically movable bearing blocks 11 to be hereinafter referred to.

Extending between the automatic feeding machine and the sheet operated throw-out device to be presently described and, which device is disposed adjacent the forwardedge of the section 5 is a conveyer comprising 'separately movable section in the form of endless belts or tapes 12 and 13. The conveyor sections 12 are mounted on a back tape roller 14 and a front tape roller 15, and are arranged to pass about a slack take-up roller 16, journaled in the end of a lever arm 17, which is pivoted at 18, and has a weight 19 suspended therefrom to impart the necessary tension. The sections 13 of the conveyerare mounted to pass about a tape roller 20 and a rear tape roller 21. Tape roller 20 is mounted upon a spindle '22, which is journaled in side bars 23 extending across an opening in the section4 of the press feed board (see Fig.3). Keyed to the spindle 22 is a gear 24, which meshes with a gear 25 on a shaft 26, the outer end of the shaft 26 having a gear 27 keyed thereto to adapt it to be driven in any suitable manner. The spindle 28 of the tape roller 15 is provided with a spline 29, upon which a spur gear 30 reciprocates into and out of mesh with the gear 25, thus adapting the conveyer tapes 12 to be disconnected whenever desired without interruptin g the operation of the tapes 13.

Referring more especially to Figs. 5, 6 and 7, a pair of side frames 31 are rigidly secured to opposite edges of section 5 of the feed board. Journaled within suitable bosses 32 at the tops of said side frames, is a cam shaft 33 to which a gear 34 is keyed, said gear 34 being in mesh with a gear 35, mounted below it on a shaft 36, which derives its power in any suitable manner, not illustrated. The gear 35 is also in mesh with a. gear keyed to the spindle 37, which carries a roller 38, the relative number of teeth being designed to drive the roller 38 at av slower peripheral speed than the velocity of the tapes 13. Coiiperating successively with the rear tape roller 21 and the relatively slow speed roller 38 are slow down rollers 89, whicli'are journaled upon stub shafts 40,

mounted in the outer which are pivotally connected by pins 42 with the lower ends of lever arms 43, which are keyed to a rock shaft 44. The rock shaft 44 is journaled in bosses 45, which formportions of the side frames 31. Also keyed to the rock shaft 44 is a cam arm 46 provided with a cam roller 47, which runs on a cam 48 keyed to the cam shaft 33. It will be seen therefore, that as the shaft 44 is rocked to and fro by the cam 48, the slow-down rollers are caused to run on the rollers 21 and 38 succcssively so that a sheet which is conveyed rearwardly by the tapes 13', will be retarded between the rollers 38 and 39. Keyed to the shaft 36, is a. cam 49 in the groove 50 of which (see Fig. 7) runs a cam roller on one end of a cam lever51, which oscillates about a pivot 52. The other end of said lever 51 is connected by a link 52 to a slide 53, which reciprocates in a slot 54 arranged transversely of the section 5 of the feed board. The reciprocating slide 53 constitutes the lower member of a side registering device. Coiiperatably disposed with respect to the slide 53 is a roll 55 which is journaled in the fork 56 on the lower end of a jig bar 57, which reciprocates vertically in a guide block 58, whichis laterally adjustable on a transverse bar 59 so as to make it possible to bring the lower end of a bolt 60, which is threaded in a boss at the upper end of the jig bar 57, into register with the. rear end of a rock arm 61, having a boss 62 keyed to a sleeve 63, which is oscillatably mounted upon a rock shaft 64. The object of roller 55 is to cooperate with the slide 53 in moving a sheet sidewise to a desired point. takes place as follows. As the sheet travels from the pile to the press front gages 105, it passes under the roller 55 which has been raised previously by the lever 61. At the proper time the roller 55 is permitted to drop on to the sheet and since the slide 53 is moving in the proper direction its motion together with the pressure of roller 55 brings the sheet into side-registered position. Said rock shaft 64 is journaled in the spaced bosses 65, carried by forwardly projecting portions of the side frames 31. In order to impart a rocking movement to the sleeve 63 at periodic intervals, the boss 66 of a crank arm 67 is keyed to the sleeve 68, the depending end of the crank arm 67 being pivotally connected to the rear end of a cam lever 68. The rear end of the cam lever 68 is provided with a cam roller 69 which runs on a cam 70, keyed to the cam shaft 33. A rocking movement is imparted to the rock shaft 64 by means of a crank arm 71, which is keyed to oneend of the shaft 64 and is pivotally connected at 72 with a cam lever 73, which carries cam roller 74 which runs on a cam 75, keyed to the cam shaft 33.

Referring more particularly to Figs. 5

This operation with. a u a and 6, a bell crank lever76 is pivotally mounted upon a stud 77, in one of the side frames 31, one arm; of said bell crank lever being pivotally connected at 78 with the rear end of a connecting rod 7 9, which connecting rod, as shown in Fig. 1, has its rear end pivotal-1y e unected at 80 with the upper end of a switch lever 81, which is pivoted at 82 in a depending bracket 83. A wire 84 is electrically connected in any suitable mannor to the switch lever. 81, said switch lever being adaptedto releasably engage the spring contacts 85 on one face of a resistance box 86, the resistance in which can be thrown in and-out by means of a commutator lever 87 for controlling the. circuit through wires 84 and 88. The other arm of the bell crank lever 76 is pivoted at 89- to the upper end of a connecting rod 90,, which transmits the throwout motion tobe hereinafter described.

Referring again to Figs. 5 and: 6-, a stud or bolt 91 serves to pivotally connect one end of a rod 92 tothe vertical arm of the bell crank lever 76. Said rod 9.2 is. reciprocably supported by means of. a spr" 93, which is housed within a socket 94, which is rigidly mounted on the side frame 31, said housing being provided with slots in its opposite walls to permit the reciprocation of rod 92 and an angular oscillation thereof to permit its actuation in the manner to be presently pointed out. On the outer end of the rod 92 is secured a block 96, which is adapted to be engaged by the enlargement 97 on the end of the lever arm 98, the boss or hub 99 of which is keyed to the inner end of rock shaft 64. It will be seen therefore that when the crank arm 71 is oscillated by the cam lever 73, the crank arm 98 will move therewith and unless the rod 92 is depressed out of the path of the enlargement 97, the bell crank lever 76 will be moved about its pivot to operate the switch lever 81 in the manner already indicated, as well as the means for rendering the press inoperative, which will be hereinafter described. In

order to prevent the actuation of the throw-.

98, means for preventing the actuation of lever arm 100, is provided in the form of a lever arm 102, which carries in its lower end an adjustable stop 103, which is engaged by the horizontal arm 104 of a front gage 105, pivoted at 106, to a suitable support 107, when said front gage is not displaced by a sheet properly fed andregistered. Lever arms 100 and 102 are keyed to the sleeve 63 and are thus caused to oscillate under the action of cam rod 68 which is driven by cam 70.v As shown in Fi 6, when a sheet 108 is fed properly, it. displaces the front 7 gage 105. into a position which permits the lever arm 102 to swing throu h its arc and causes. the lever arm 100 to epress rod 92' with the results before mentioned. Reciprocablymounted in suitable bearings formed 75 in. the upright portion 109 of the main side frame of the printing press, are a pair of rods 110 which are rigidly united above to tion 109 of the side frame and which spring 35.

surrounds a guide rod 113, abutting at-its upper end against the bearing block 11. A bed. 114 upon which the form is usually mounted in presses of this character, re-

ciprocates upon suitable guides (not shown) on.

such reciprocatory movement being impart ed by means of. a crank arm 115,- which is keyed to a power shaft 116 and transmits its power by means of a connecting rod 117 to the bed v114. As shown best in Fig. 8, a as,

transverse shaft 118 has keyed thereto an eccentric disk 119, which transmits power by means of a sheave 120 to a reciprocatory rod 121, such rod having recesses intermediately of its ends engaged by a cam 10o roller 122 (see Fig. 9) on the outer end of the horizontal arm of a bell crank lever 123 pivoted at 124 upon a part rigid with one of the side frames. A. connecting rod 125 is pivoted at 126 to the vertical arm of bell m5 crank lever 123 and has its other end pivotally connected at 127 to a depending arm 128 of a pedal lever 129, which is pivoted at 130, said pedal lever being provided with a weight 131, which counterbalances the foot 110 pad 132. A. pin 133 which projects laterally from the weight 131 rests in the lower end of a slot 134 in the lower end of a connecting rod 135-. At its upper end, said rod 135 is pivotally connected to a bolt 136 to which 115 a spring rod 137 is also pivot-ally connected. A spring 138 which is wound about the rod 137, normally retains said rod 137 in elevated position by means of pressure eX- .ertedthereby between a fixed abutment 139 12a and a collar 140 on the spring rod. By an inspection of Figs. 8 and 9 it will be seen that the connecting rod 90 has its lower end pivotally connected at 91 to a lever 141 which is oscillatable about a stud 142. Ad- 125 jacent the other end of said lever 141, is a pin 143, which normally engages the depending arm of a bell crank lever 144,

which ispivoted upon a stud 145. The horizontal arm of the bell crank lever 144, car- 130 Means for northe upper ends of the connecting rod 135 and spring rod 137.

recess into which an eccentric pin 146, which projects laterally from one branch of a crank 147 of a camshaft 148, said cam shaft being journaled in suitable hollows formed in the cross heads 111, and provided on each end with an upwardly projecting cam 149, said cam being adapted, as shown in Fig. 8, to engage the upper longitudinal rail of the side frame.

I By inspection of Fig. 9 it will be seen that when connecting rod 90 moves upwardly under the impulse imparted by the throwout 168 device, the lever arm 141 rocks on its pivot 142 and moves the pin 143 downwardly, thus releasing the bell crank lever 144, which oscillates to the right under the action of spring 138. This movement in turn draws the rod 135 upwardly, swings the pedal lever 129 about its pivot 130 and through the con: necting rod 125 and bell crank lever 123 raises the cam roller. 122 which forces the outer end of the lever 121 upward. This action releases the pin 146 from engagement with the recess intermediately of the ends of rod 121 so that the reciprocatory movements imparted to the rod 121 by the eccentric 119 no longer serves to draw the cylinderdownwardly against the bed 114. In consequence there can be no press action while the throwout device is operative. In order to provide means for resetting the parts in normally operative positions, a connecting rod 150 which is pivotally connected to the stud or bolt 136 at its lower end, is pivotally connected at its upper end 151 with a curved arm 'l52 of a bent lever pivoted on the stud 153, the upper arm 154 of said lever being provided with a roller 155, which is adapted to be engaged by a cam bar 156, shown in dotted lines in Fig. 1 on the lateral face of the bed 114. In conse- .quence as soon as a properly registered sheet is presented to the front gages, the impression mechanism becomes operative, as soon as the switch 81 is returned to operative popress proceeds to print as before. In this connection, it should be explained,that switch 81 controls the opera- ,tion of the entire machine so that when said switch is thrown out, neither press nor feeder can be operated. This is desirable when the press is being machine fed as it enables the press to be stopped automatically. When the sheets are fed semi-automatically, that is by hand to the drop rollers 166 (see Fig. 2), the switch 81 is not used inasmuch as the hand operator controls the press by means of switch lever 87. When it is desired to operate the feeding machine semi-automatically, that is by feeding sheets by hand to a sheet take-0E mechanism, a

Intermediately of its endthe rod 121 is provided with a circulara pile of sheets connecting rod' 161 is employed, as shown in Fig. 2, one end of said rod being pivotally connected to the pin 42, carried by the lever arm 43, and the other end of said rod bein joined to the lever arm 162 which is ke e to the drop roller shaft 163. Also keyed to the shaft 163 are the roll-carrying arms 164 on which are journaled the drop rollers 166. In order to adapt this drop-roller mechanism to be temporarily set up for semi-automatic feeding the drop roller shaft 163 is journaled in laterally spaced brackets 167 (see Fig. 3) which are removably mounted on fixed section 4 of the permanently arranged feed board, by means of the screws no or more suitable brackets 165 may be provided on one of the middle sections of the feed board to support any of the foldable sections of said feed board which may be rested thereon when lifted out of operating position. i

I claim:

1. In a machine of the character described, the combination of a conveyer comprising separately operable sections arranged to act successively on a sheet which is being fed, sheet-presenting mechanism arranged adjacent the delivery end of one of said sections, a sheet-feeding device arranged adjacent the delivery end of the other section of said conveyer and adapted to have sheets fed thereto by hand, and means for driving said conveyer sections, said second section being provided with an operating connection permitting it to be brought to rest to receive to be fed by hand to the sheet-feeding device.

2. The combination with a feed board, of a conveyor comprising sections arranged in series across said feed board, means for driving one of said sections independently of the other, means for driving the other section cooperatively with the first section or permitting said other section to remain at rest, sheet-presenting mechanism arranged adjacent the discharge end of the first said section, and a sheet-feeding device arranged to deliver sheets to the first said section from a pile of sheets disposed upon the feed board above said other section, said feed board being adapted as a whole to be disposed between a machine to which sheets are to be fed and an automatic sheet-feeding machine. 3. The combination ing device, ofa feeding machine, a conveyer extending from said feeding machine to said sheet-presenting device, and comprising sections respectively. arranged adjacent said feeding machine and sheet-presenting device, means for driving the section adjacent the sheet-presenting device while the other section remains at rest, and a sheet-feeding device adapted to be operativcly disposed with respect to said driven section of said conveyer, said device being suitably diswith a sheet-presentltl mtaeeo sheet feeding device removably mounted on said feed table between the'feeding machine and the throw-out device, said conveying means being adapted to convey sheets fromsaid auxiliary sheet-feeding device to said throw-out device from a pile of sheets disposed on'said feed table between said feed ing machine and auxiliary feeding" device.

5. The combination with a feed table, of a sheet-operated throw-out device disposed adjacent one edge of said table, a feeding machine disposed adjacent the opposite edge of said table, means for conveying sheets across said table fromsaid feeding machine to said throw-out device, and an auxiliary sheet feeding device adapted to be mounted on said feed table between the feeding machine and the throw-out device, said conveying means being adapted to convey sheets from said auxiliary sheet-feeding device to said throw-out device, said feed table being constructed in sections hinged together and said throw-out device being carried on one of said sections.

6. The combination with an instrumentality to which sheets are to be fed said instrumentality being provided with a feed board constructed in sections hinged together, a sheet-presenting device mounted on one of said sections, a sheet-feeding machine mounted adjacent another of said sections, an auxiliary sheet-feeding device mounted on another section, a conveyer comprising sections respectively extending from said feeding machine to said auxiliary feeding device and from the latter to said sheet presenting device, and means for driving said conveyer sections.

7. The combination with an instrumentality to which sheets are to be fed said instrumentality being provided with a feed board constructed in sections hinged together, a sheet-presenting device mounted on one of said sections, a sheet-feeding machine mounted adjacent another of said sections, an auxiliary sheet-feeding device mounted on another section, a conveyer comprising sections respectively extending from said feeding. machine to said auxiliary feeding device and from the latter to said sheet presenting device, and means for driving said conveyer sections, said means being adapted to drive only the conveyer section between said auxiliary feeding device and said sheet-presenting device when the feeding machine is not in use.

8. The combination with a printing press frame, of a form bed recipro'cably mounted on said bed, a rotatable cylinder, bearing blocks for said cylinder slidably mounted on said frame to reciprocate toward and away from said bed, means normally holding said cylinder away from the bed, crossheads rigidly connected to said bearing blocks, a crank shaft journaled in said crossheads, a cam carried by said'crank shaft and adapted to engage the press frame to force the cylinder down on to said bed, a

reciprocable'bar normally adapted to drive said crank shaft andsheet feeding means provided with a throw-out operably connected to said reciprocatable bar, said reciprocatable bar being provided with means for automatically disconnecting it from the crank shaft by the actuation of said throwout.

9. The combination with a printing press frame, of a form bed reciprocably mounted on said bed, a rotatable cylinder, bearing blocks for said cylinder slidably mounted on said frame to reciprocate toward and away from said bed, means normally holding said cylinder away from the bed, crossheads rigidly connected to said bearing blocks, a crank shaft journaled in said crossheads, a cam carried by said crank shaft and adapted to engage the pressframe to force the cylinder down on to said bed, a reciprocatable bar normally adapted to drive said crank shaft, sheet feeding means provided with a throw-out operatably connected to said reciprocatable bar, said throw-out being thereby adapted to disconnect the bar from said crank shaft, and means for restoring the operative connection between said bar and crank shaft.

10. The combination with a printing press frame, of a form bed reciprocably mounted on said frame, a rotatable cylinder, bearing blocks for said cylinder slidably mounted on said frame to reciprocate toward and awa from said bed, means normally holding sai cylinder away from the bed, cross-heads rigidly connected to said bearing blocks, a crank shaft journaled in said cross-heads, a cam carried by said crank shaft and adapted to engage the press frame to force the cylinder down on to said bed, a reciprocatable bar normally adapted to drive said crank shaft, sheet feeding means provided with a. throw-out operatably connected to said reciprocatable bar, said throw-out being thereby adapted to disconnect the bar from said crank shaft, and means for restoring the operative connection between said bar and crank shaft, the last said means including a latch mechanism operatably related to said rod and said reciprocating bed.

11. The combination with a printing press lltttt ment with said crank printing relation with each other, a crank shaft provided with suitable means for imparting a relative movement between said form and platen, a reciprocable bar detachably engaging said crank shaft,;a feeding mechanism provided with a throw -out mechanism, means operatably related to said throw-out for movin the bar out of engageshaft, and means operatably related to an operative part of the press for reestablishing the connection between said rod and crank shaft.

12. The combi'nation'with a printing press embodying a form and platen and suitable means for mounting said form and platen to adapt them to be thrown into and out of printing relation witheach'other, a crank shaft provided with suitable means for imparting a relative movement between said form and platen, a reciprocatable bar detachably engaging said crank shaft, a feeding mechanism provided with a throw-out mechanism, means operatably related to said throw-out for moving the bar out of engagement with said crank shaft, means operatably related to an operative part of the press for reestablishin the connection between said rod and cran shaft, and a powercontrol operatably related to said throwout device.

13. A feed board, a sheet-presenting device adjacent one edge thereof, a sheet-feeding device adjacent the center of said feed board, a conveyer section extending between said sheet-feeding device and saidsheetpresenting device, and a conveyer section extending between the opposite edge of said feed board and said sheet-feeding device, said conveyer sections being relatively movable and said sheet-feeding device being suitably mounted to be moved into and out of operating position, said conveyer sections being adapted to cooperate with each other to convey sheets to said sheet-presenting device from a feeding machine disposed ad- 1 5 0 rjacent the edge of said feed board opposite thereto.

14. In a machine of the character described, the combination of a conveyer comprising relatively movable sections arranged to act successively on a sheet which is being fed, sheet-presenting mechanism arranged adjacent the delivery end of one of said sections, means for fdriving'the other of said sections, said driving means being capable of being disconnected from said other section while the first said section is continued in action, and a sheet-feeding device adapted to be interposed between the first said section in motion and said other section at rest to feed sheets from a pile on said other section to said sheet-presenting device.

f 15. In a machine of the character described, the combination of a feed table comprising hinged sections adaptedto be moved lnto and out of the normal plane of said feed board, a sheet-presenting mechanism mounted on one section of said feed board, a sheet-feeding device mounted on another section of said feed board, a conveyer section leading from said feeding device to said sheet-presenting mechanism, and another conveyer section leading to said sheet-feeding device.

16. In a printing press, the combination with a feed table having pivotal front and back flaps, of two independently organized sheet conveyers respectively located above the planes of these pivotal flaps, whereby either or both flaps may be raised into their clearance positions.

In a printing press, the combination with a feed table having a stationary intermediate section and pivotal front and back flaps, and two series of sheet-conveyers respectively arranged over the said flaps on opposite sides of the said intermediate section of the feed table, and means mounted in the said section for driving the said sheet conveyers independently of each other.

18. In a printing press, the combination with a feed table having an intermediate section and pivotal front and back flaps, of two independently organized series of sheet conveyers located above the said flaps, and driving mechanism for the said sheet conveyers, located beneath the intermediate section of the table whereby either or both flaps may be raised into their clearance position.

19. In a printing press, the combination with a feed table havin an intermediate section and front and bac r flaps, idler taperolls mounted in the outer ends of the said flaps, tape-driving mechanism located beneath the intermediate section of the table, and two independent series of tapes located above the planes of the said flaps, running over the idler rolls in the outer ends thereof respectively, and driven by the driving mechanism under the said central section, whereby one series'of tapes may be driven independently of the other and whereby the flaps may be raised or lowered independently of each other.

20. In a printing press, the combination with a feed table having a pivotal front flap, a sheet presenting mechanism mounted upon said front flap which may be swung into its clearance position without removing said mechanism.

21. Ina printing press, the combination with a feed table having pivotal front and back feed table flaps adapted to be lifted into clearance positions, of two independently organized series of sheet conveyers located in line with each other above the plane of the said feed table flaps with 1,1ae,eeo W which they are respectively organized, and cated above the said flaps, and means for means for operating one of the said series of operating one of these series independently conveyers independently of the other series. of the other.

22. In a printing press, the combination ICHARD E. JONES. 5 with a feed table, having pivotal front and Witnesses:

back flaps, of two independently organized ROBERT ARMs'rRoNe,

series of sheet conveyers respectively 10- D. VON Soosrnn, Jr. 

